content: convert to Markdown-enabled present inputs

Converted blog to Markdown-enabled present (CL 222846)
using present2md (CL 222847).

For golang/go#33955.

Change-Id: Ib39fa1ddd9a46f9c7a62a2ca7b96e117635553e8
Reviewed-on: https://go-review.googlesource.com/c/blog/+/222848
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Andrew Bonventre <andybons@golang.org>

1 files changed, 16 insertions, 15 deletions

diff --git a/content/go1.9.article b/content/go1.9.article
index 8cf8ab4..ec6f176 100644
--- a/content/go1.9.article
+++ b/content/go1.9.article
@@ -1,13 +1,14 @@
-Go 1.9 is released
+# Go 1.9 is released
 24 Aug 2017
+Summary: Today the Go team is happy to announce the release of Go 1.9. You can get it from the [download page](https://golang.org/dl/). There are many changes to the language, standard library, runtime, and tooling. This post covers the most significant visible ones. Most of the engineering effort put into this release went to improvements of the runtime and tooling, which makes for a less exciting announcement, but nonetheless a great release.
 
 Francesc Campoy
 campoy@golang.org
 
-* Introduction
+##
 
 Today the Go team is happy to announce the release of Go 1.9.
-You can get it from the [[https://golang.org/dl/][download page]].
+You can get it from the [download page](https://golang.org/dl/).
 There are many changes to the language, standard library, runtime, and tooling.
 This post covers the most significant visible ones.
 Most of the engineering effort put into this release went to improvements of the runtime and tooling,
@@ -20,22 +21,22 @@ created to support gradual code repair. A type alias declaration has the form:
 
 This declaration introduces an alias name `T1` for the type `T2`, in the same way that `byte` has
 always been an alias for `uint8`.
-The [[https://golang.org/design/18130-type-alias][type alias design document]] and
-[[https://talks.golang.org/2016/refactor.article][an article on refactoring]] cover this addition in more detail.
+The [type alias design document](https://golang.org/design/18130-type-alias) and
+[an article on refactoring](https://talks.golang.org/2016/refactor.article) cover this addition in more detail.
 
-The new [[https://golang.org/pkg/math/bits][math/bits]] package provides bit counting and manipulation functions
+The new [math/bits](https://golang.org/pkg/math/bits) package provides bit counting and manipulation functions
 for unsigned integers, implemented by special CPU instructions when possible.
 For example, on x86-64 systems, `bits.TrailingZeros(x)` uses the
-[[https://pdos.csail.mit.edu/6.828/2010/readings/i386/BSF.htm][BSF]] instruction.
+[BSF](https://pdos.csail.mit.edu/6.828/2010/readings/i386/BSF.htm) instruction.
 
-The `sync` package has added a new [[https://golang.org/pkg/sync#Map][Map]] type, safe for concurrent access.
+The `sync` package has added a new [Map](https://golang.org/pkg/sync#Map) type, safe for concurrent access.
 You can read more about it from its documentation and learn more about why it was created from this
-[[https://www.youtube.com/watch?v=C1EtfDnsdDs][GopherCon 2017 lightning talk]]
-([[https://github.com/gophercon/2017-talks/blob/master/lightningtalks/BryanCMills-AnOverviewOfSyncMap/An%20Overview%20of%20sync.Map.pdf][slides]]).
+[GopherCon 2017 lightning talk](https://www.youtube.com/watch?v=C1EtfDnsdDs)
+([slides](https://github.com/gophercon/2017-talks/blob/master/lightningtalks/BryanCMills-AnOverviewOfSyncMap/An%20Overview%20of%20sync.Map.pdf)).
 It is not a general replacement for Go's map type; please see the documentation to learn when it should be used.
 
 The `testing` package also has an addition. The new `Helper` method, added to both
-[[https://golang.org/pkg/testing#T.Helper][testing.T]] and [[https://golang.org/pkg/testing#B.Helper][testing.B]],
+[testing.T](https://golang.org/pkg/testing#T.Helper) and [testing.B](https://golang.org/pkg/testing#B.Helper),
 marks the calling function as a test helper function.
 When the testing package prints file and line information, it shows the location of the call to a helper function
 instead of a line in the helper function itself.
@@ -55,14 +56,14 @@ For example, this code now computes the right elapsed time even across a leap se
 	f()
 	elapsed := time.Since(start)
 
-See the [[http://beta.golang.org/pkg/time/#hdr-Monotonic_Clocks][package docs]] and
-[[https://github.com/golang/proposal/blob/master/design/12914-monotonic.md][design document]] for details.
+See the [package docs](http://beta.golang.org/pkg/time/#hdr-Monotonic_Clocks) and
+[design document](https://github.com/golang/proposal/blob/master/design/12914-monotonic.md) for details.
 
 Finally, as part of the efforts to make the Go compiler faster, Go 1.9 compiles functions in a package concurrently.
 
 Go 1.9 includes many more additions, improvements, and fixes. Find the complete set of changes,
 and more information about the improvements listed above, in the
-[[https://golang.org/doc/go1.9][Go 1.9 release notes]].
+[Go 1.9 release notes](https://golang.org/doc/go1.9).
 
 To celebrate the release, Go User Groups around the world are holding
-[[https://github.com/golang/cowg/blob/master/events/2017-08-go1.9-release-party.md][release parties]].
\ No newline at end of file
+[release parties](https://github.com/golang/cowg/blob/master/events/2017-08-go1.9-release-party.md).